From 307057c787d23384dce718b0851c21bfa13e5657 Mon Sep 17 00:00:00 2001
From: Taylor Helsper <tehelsper@gmail.com>
Date: Mon, 15 Nov 2021 22:56:12 -0600
Subject: [PATCH] Save device arch and do some docker re-installs if arch
 changes

---
 .../standard/usr/bin/mynode_docker_images.sh  | 25 +++++++++++++++++++
 .../usr/share/mynode/mynode_config.sh         |  1 +
 2 files changed, 26 insertions(+)

diff --git a/rootfs/standard/usr/bin/mynode_docker_images.sh b/rootfs/standard/usr/bin/mynode_docker_images.sh
index f2ca98a1..a42a9bbd 100755
--- a/rootfs/standard/usr/bin/mynode_docker_images.sh
+++ b/rootfs/standard/usr/bin/mynode_docker_images.sh
@@ -20,6 +20,31 @@ while true; do
     echo "Checking for building new docker images..."
     touch /tmp/installing_docker_images
 
+    # Check if we happened to change architectures (move from 32-bit to 64-bit Raspi4 image)
+    CURRENT_ARCH=$(uname -m)
+    SAVED_ARCH="unknown"
+    if [ ! -f $DEVICE_ARCHITECTURE_FILE ]; then
+        echo $CURRENT_ARCH > $DEVICE_ARCHITECTURE_FILE
+    fi
+    if [ -f $DEVICE_ARCHITECTURE_FILE ]; then
+        SAVED_ARCH=$(cat $DEVICE_ARCHITECTURE_FILE)
+    fi
+    if [ "$CURRENT_ARCH" != "$SAVED_ARCH" ]; then
+        # Reset docker stuff
+        docker system prune --all --force
+
+        # Remove containers known to cause problems if cached
+        docker rmi debian:buster-slim
+
+        # Mark mempool and dojo for re-install
+        #  Must reset version for Dojo or it will fully re-install and break rather than 'upgrade'
+        echo "reset" > $WEBSSH2_VERSION_FILE
+        echo "reset" > $NETDATA_VERSION_FILE
+        echo "reset" > $MEMPOOL_VERSION_FILE
+        echo "reset" > $DOJO_VERSION_FILE
+    fi
+    echo $CURRENT_ARCH > $DEVICE_ARCHITECTURE_FILE
+
     # Pull images that don't need to be built
     # ???
 
diff --git a/rootfs/standard/usr/share/mynode/mynode_config.sh b/rootfs/standard/usr/share/mynode/mynode_config.sh
index 6c1750a7..ae030f96 100644
--- a/rootfs/standard/usr/share/mynode/mynode_config.sh
+++ b/rootfs/standard/usr/share/mynode/mynode_config.sh
@@ -53,6 +53,7 @@ SERIAL_NUM=$(mynode-get-device-serial)
 # Set all default / standard bash config settings
 MYNODE_DIR=/mnt/hdd/mynode
 MYNODE_STATUS_FILE=/tmp/.mynode_status
+DEVICE_ARCHITECTURE_FILE="/mnt/hdd/mynode/settings/.device_arch"
 VPN_BACKUP_DIR=/mnt/hdd/mynode/vpn
 QUICKSYNC_DIR=/mnt/hdd/mynode/quicksync
 QUICKSYNC_CONFIG_DIR=/mnt/hdd/mynode/.config/transmission